Add configuration file for clang-format
Add configuration file for clang-format

Tested with Debian clang-format version 3.6.2-3.
Apply to a file with:
clang-format -style=file -fallback-style=none -i [FILE]
Option reference:
http://llvm.org/releases/3.6.0/tools/clang/docs/ClangFormatStyleOptions.html

PADrend/Geometry